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alukav5142 [94]
4 years ago
10

[x = -4y] [3x + 2y = 20] *

Mathematics
2 answers:
siniylev [52]4 years ago
8 0

Hi there! Hopefully this helps!

-----------------------------------------------------------------------------------------------------------

Answer to solving for y: <em> y = -2.</em>

<em />

Answer for simplifying the expression: -12y - 4.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We are given that x = -4y and that the equation is 3x + 2y = 20.

<em>We need to evaluate.</em>

<em />

3x + 2y = 20

||

\/

3(-4y) + 2y = 20.

<em>To solve for y, y = -2.</em>

||

\/

3(-4y) + 2(-2) = -12y - 4.

<em />

cluponka [151]4 years ago
6 0

Answer:

y= -2 x=8

Step-by-step explanation:

3 (-4y)+2y=20

-12y+2y=20

-10y=20

y= -2

x= -4 (-2)

x=8

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